Blockchain Developer

Walmart; Fayetteville (NC); On-site; USD 78,000 - 103,000; Full time

Job summary

Walmart in Fayetteville, NC is seeking a Blockchain Developer to own hands-on subsystem coaching, optimize PostgreSQL flow, and keep Rails services responsive during peak traffic. The role emphasizes strong Cloud skills with Kafka and mentoring capabilities to guide mid-level engineers. Remote flexibility is not specified; local collaboration is expected.

The position offers salary in a broad market range, a clear growth track, and a focus on fast, reliable data platforms for Walmart.

Qualifications

• 4+ years in a Blockchain Developer role.
• Experience with Google Cloud and Kafka.
• Strong Ruby on Rails foundation (3+ years).
• Ability to mentor mid-level teammates.
• Ability to own technology decisions in NC market.

Responsibilities

• Enhance test automation frameworks to increase release confidence
• Re-architect the technology flow so PostgreSQL handles ten times Fayetteville's current load
• Own the hands-on Coaching subsystem that the rest of Walmart quietly depends on
• Keep the technology Ruby on Rails service humming through Fayetteville's holiday traffic surge
• Stitch Next.js events into the Flask pipeline feeding Walmart's technology reports
• Build internal tooling that improves developer productivity and velocity
• Keep Walmart's PostgreSQL CI under ten minutes so Fayetteville, NC engineers stay in flow

Skills

Blockchain Development

Google Cloud

Kafka

Ruby on Rails

Mentoring

Job description

Our platform processes enormous volumes of data, and we need a Blockchain Developer who can keep it fast and resilient. This contract job at Walmart delivers $78,000 - $103,000, hands-on ownership, and a clear ladder for technology professionals.

Key Responsibilities

• Enhance test automation frameworks to increase release confidence
• Re-architect the technology flow so PostgreSQL handles ten times Fayetteville's current load
• Own the hands-on Coaching subsystem that the rest of Walmart quietly depends on
• Keep the technology Ruby on Rails service humming through Fayetteville's holiday traffic surge
• Stitch Next.js events into the Flask pipeline feeding Walmart's technology reports
• Build internal tooling that improves developer productivity and velocity
• Keep Walmart's PostgreSQL CI under ten minutes so Fayetteville, NC engineers stay in flow

What You'll Bring

• A collaborator who makes the mid-level review feel less like an exam
• Real Google Cloud chops, plus the Kafka curiosity to keep growing
• Roughly 4+ years operating in a similar Blockchain Developer position
• Comfort owning technology decisions in a NC market
• An instinct for prioritization when everything is labeled urgent
• Demonstrated capacity to mentor or support mid-level teammates
• A solid foundation in Ruby on Rails, refined over 3+ years

For over 3 years, Walmart has built quick-to-ship solutions that help teams in Fayetteville, NC get more done. We treat every new Blockchain Developer as a fresh set of eyes, so tell us what looks broken.

We are offering $78,000 - $103,000, a clear growth track, hands-on mentorship, and the kind of flexibility that keeps NC talent happy.